CHROME OXIDE (GREEN)

CHROME OXIDE (GREEN) = chromium(III)-oxide = Chromium Oxide

CAS-No. : 1308-38-9
EC-No. : 215-160-9
Molacular Formula : Cr2O3

Chrome Oxide (Green) GS is a heat stable chrome oxide (Green) pigment.
Chrome Oxide (Green) is one kind of inorganic pigment.
Chrome oxide (Green), which is nearly pure Cr2O3, is the most stable (Green) pigment known. 
Chrome Oxide (Green) is a mixture of lead chromate with iron blue. 
Chromium(III) oxide (or chromia) is an inorganic compound with the formula Cr2O3. 

Chrome Oxide (Green) is one of the principal oxides of chromium and is used as a pigment. 
In nature, Chrome Oxide (Green) occurs as the rare mineral eskolaite.
Cr2O3 has the corundum structure, consisting of a hexagonal close packed array of oxide anions with 2⁄3 of the octahedral holes occupied by chromium. 
Similar to corundum, Cr2O3 is a hard, brittle material (Mohs hardness 8 to 8.5). 
Chrome Oxide (Green) is antiferromagnetic up to 307 K, the Néel temperature.

Chrome Oxide (Green) is not readily attacked by acids.
Cr2O3 occurs naturally as the mineral eskolaite, which is found in chromium-rich tremolite skarns, metaquartzites, and chlorite veins. 
Eskolaite is also a rare component of chondrite meteorites. 
Cr2O3 is named after Finnish geologist Pentti Eskola.
Not surprisingly one of the most common uses for Chromium Oxide (Green) is in camouflage paint. 

Chromium Oxide (Green) aqueous pigment dispersion, also known as chromium sesquioxide or chromia, is one of four oxides of chromium. 
Chromium Oxide (Green) is commonly called chrome (Green) when used as a pigment; however Chromium Oxide (Green) was referred to as viridian when Chromium Oxide (Green) was first discovered.
Chromium oxide (Green) is used in a wide variety of industries. 
Chromium oxide (Green) is known for its lustrous, metallic and hard crystals. 

Chromium oxide (Green) is color intensive and has a high coverage.  
Chrome Oxide (Green) provides landscape artists rest in a summer painting saturated with vibrant greens. 
Opaque and low-staining, Chromium (Green) Oxide mixes well to soften other colors.
This is a fine powdered green pigment. 
The color soaps well, and can deliver a wide array of shades.
Chrome Oxide (Green) is an inorganic pigments. 

Cr2O3 is the basic chemical composition.
A dull, olive-green color pigment that occurs naturally as the mineral eskolaite. 
A process for synthetically producing anhydrous, opaque chrome oxide (Green) was developed in 1809 by Vauquelin. 
The colorant was listed as an artists pigment in the 1840 Winsor and Newton catalog. 
Chrome Oxide (Green) is opaque, lightfast, and durable with excellent resistance to chemicals and heat. 
Chromic oxide has limited use in paints because of Chrome Oxide (Green)'s dull color. 

However, Chrome Oxide (Green) absorbs infrared radiation well and this has led to Chrome Oxide (Green)'s use in deck paints and camouflage coatings for military purposed. 
Chromium oxide is also used as an abrasive, as a glaze color, and for tanning leather.
Chrome oxide (Green) is a classic green pigment with excellent weather and light fastness as well as heat resistance to well over 300°C. 
Chromium(III) oxide (or chromia) is an inorganic compound with the formula Cr2O3. 

Chromium(III) oxide is one of the principal oxides of chromium and is used as a pigment. 
In nature, Chromium(III) oxide occurs as the rare mineral eskolaite.
Because of Chromium(III) oxide's considerable stability, chromia is a commonly used pigment. 
Chromium(III) oxide was originally called viridian. 
Chromium(III) oxide is used in paints, inks, and glasses. 
Chromium(III) oxide is the colorant in "chrome green" and "institutional green."

Amphoteric chrome oxide is the only stable oxide of chromium metal and can be used at all temperatures to 1200°C. 
Also Known as Chromium Oxide, Chromium Oxide (Green), Chromium Sesquioxide or Chromia and is one of the four oxides of chromium
A crystalline green powder in pigment form and classified as Pigment (Green) 17.
Chromium Oxide has been around since the mid 1800's and has a well deserved place on any artists palette, Valued for Chromium Oxide's permenance and opacity Chromium Oxide is one of the most stable pigments available
Chrome Oxide (Green) is a concentrated mixing color to be used to create various new colors with Chrome Oxide (Green).
A versatile colorant used in glazes to most commonly produce various green tints.

Chrome oxide is a green crystal powder, metal luster, magnetic, good covering strength, high temperature-resisting and sunlight fastness. 
Not soluble in water, barely soluble in acids, comparatively stable in air, unaffected by acids and alkalis of common density, sulfur dioxide, sulfur hydrogen etc. 
Chrome oxide (Green) enjoys excellent quality and firmness of coloring.
Chromium Oxide is an inorganic compound used in ceramics as a green colorant. 

Chrome oxide's chemical formula is Cr2O3, and Chrome oxide is available in powdered form. 
Chrome oxide is a versatile chemical, known for Chrome oxide's use in producing green tints in glazes.
Chrome produces a wide range of greens, from a transparent glossy lime green to the more iconic, opaque, satin kelly green. The strong green color can often be modified by very small amounts of other oxides, like cobalt oxide, copper oxide, iron oxide, manganese dioxide, rutile, tin oxide, etc.
Chrome oxide can yield a variety of colors: red, yellow, pink, brown, and especially green. 

Chrome oxide is a very refractory ceramic colorant.
Chrome oxide is the only stable oxide of the metal chromium. 
Chrome oxide is a bright to dark green crystalline powder insoluble in alkalis and acids. 
Chrome oxide is manufactured from the mineral Chromite mined in southern Africa, Asia, Turkey and Cuba. 
As with other powerful coloring agents, chrome must be milled fine enough to eliminate specking in glass or glaze.
Since Cr2O3 becomes 2CrO3, oxygen is captured from the surroundings, thus the percentage (or conversion factor) is greater than 100.

CHROME OXIDE (Green) is a very strong coloring oxide used in glazes and stains to produce greens at high temperatures. 
Low termperature reds in high-lead, low-alumina glaze. 
Reduction blackens color. 
May jump from pot to pot in high fire. 
Chrome oxide (Green) is not soluble in water in acids and alkalis.

USES and APPLICATIONS of CHROME OXIDE (GREEN):
-Also known as Chromium (III) Oxide, CHROME OXIDE (Green) is used as an inorganic pigment in paints, architectural coatings, plastics, roofing tiles and ceramic tiles. 
-Chrome Oxide (Green) is also used in heavy-duty applications in the construction of high temperature and abrasion-resistant refractory brick for glass and fiberglass. 
-High purity grade chrome oxide is used in the manufacturing of chromium metal.
-Chrome Oxide (Green) is  used extensively in the coloration of construction materials. 

-In addition, Chrome Oxide (Green) can also be used for the coloration of glazes, enamels or engobes in the ceramic industry. -Chrome Oxide (Green) exhibits good dispersibility, even in processes which have short dwell times and relatively low shear forces. 
-Chrome Oxide (Green) is easy to break down and distribute to reach Chrome Oxide (Green)s final tinting strength quickly. 
-Chrome Oxide (Green) is very lightfast and weather stable.  
-Chrome Oxide (Green) is used for colouring roofing granules, cements, and plasters. 

-Chrome Oxide (Green) is also employed as a fine powder for polishing. 
-Chrome Oxide (Green) makes an excellent paint for both wood and metal. 
-Artists use Chromium (Green) Oxide because Chrome Oxide (Green) is very good at making a wide range of greens when mixed with other colours, making Chrome Oxide (Green) as important to the artist today as Chrome Oxide (Green) was when Chrome Oxide (Green) was unveiled as a new colour 170 years ago in Paris. 
-Because (Green) chrome oxide was difficult to counterfeit at the end of the Civil War, Chrome Oxide (Green) was part of the original ink used to print American bills. 
Today, the Treasury Department uses special inks and other features to increase security and prevent counterfeiting.

-When manufacturing glass, adding (Green) chrome oxide turns glass–you guessed Chrome Oxide (Green)– a green color. 
The higher the concentration, the more intense the color. 
A commercial example of this is a wine bottle. 
Chrome Oxide (Green) also allows some light protection to preserve the wine’s flavor. 
(Green) chrome oxide is commonly used in the production of refractory brick to line metallurgical and glass furnaces/kilns as Chrome Oxide (Green) has a melting point of 2300°C.

-(Green) chrome oxide is often used in industrial paints where a lot of wear is involved. 
For example, military vehicles are painted with (Green) chrome oxide paint. 
(Green) chrome oxide retains (Green) chrome oxide's color in high heat and light exposure, making (Green) chrome oxide ideal for outdoor applications.
-In paste form, (Green) chrome oxide can be used to polish glass and sharpen metal blades.
-Not only does (Green) chrome oxide add color to inks, glasses and paints, (Green) chrome oxide also lends (Green) chrome oxides forest green hue to plastics (e.g. soda bottles) and ceramics. 
(Green) chrome oxide mixes well with clay and can be used as an ingredient in glazes.

-When heated, ammonium dichromate decomposes into (Green) chromium oxide, nitrogen and water vapor.
-Chrome Oxide (Green)'s hardness is also highly valued for surface finishing, where Chrome Oxide (Green)s are used as abrasive components. 
-Chrome Oxide (Green)s are also used as a base oxide to produce several other metal oxide based pigments
-Chrome Oxide (Green)s are used in a wide variety of applications because of Chrome Oxide (Green)'s excellent opacity, outdoor durability and heat fastness. 
-Chromium is a 'fast' color, meaning it produces its characteristic green in slow or fast and oxidizing or reducing firing. 

-Chrome Oxide (Green) is also used in paints and dyes. 
-The green color produced by chrome only is generally a drab army-helmet green.
-Chromium is used in the glass industry to make green glass (up to 1%). 
-Antimony is sometimes used as a reducing agent to ensure an emerald green.
-Chromium is not very soluble in glass and does not form silicates or combine with fluxes readily unless compounds are finely ground (e.g. ball milled) and dispersed and amounts are not excessive. 
-Chrome Oxide (Green)'s widely used for the coloring of Paint, Coating, Plastic, Ink,concrete,asphalt paving materials.

-Chrome Oxide (Green) owns very bright color and perfect light resistance, weather resistance.
So it's widely used in concrete lock bricks as pigment.
-Mainly used for smelting metal chromium and chromium carbide, polishing paste and paint pigments, also used for refractories, abrasives, enamel, glass, pottery and porcelain of colorants and melting spray paint.
-Pigment,paint,glass,building ceramic colorants,printing-ink,chrome plating,chromium metal production,fire-proof materials.  
-Chrome oxide can be used as a body stain in amounts to 5% to give grey-green.
-Drab chrome (Green)s can be moved toward peacock green with the addition of cobalt oxide (1% each gives bright color). 
This works in boron and soda glazes.

-Chromium is used in the glass industry to make green glass (up to 1%). 
-Antimony is sometimes used as a reducing agent to ensure an emerald green. 
-Chromium is not very soluble in glass and does not form silicates or combine with fluxes readily unless compounds are finely ground and dispersed and amounts are not excessive. 
-Amount up to 3% in a glaze recipe gives greyish green coloration
-Also known as Chromium (III) Oxide, Chrome oxide is used as an inorganic pigment in paints, architectural coatings, plastics, roofing tiles and ceramic tiles. 

-Chrome Oxide (Green) is also used in heavy-duty applications in the construction of high temperature and abrasion-resistant refractory brick for glass and fiberglass. 
-High purity grade chrome oxide is used in the manufacturing of chromium metal.
-In addition to Chromium Oxide's use as a colorant in ceramics, chromium oxide is also used in paints, inks and glasses. 
-Chrome oxide is also used in black glazes and stains to give a strong, true black color.
-Chromium is a 'fast' colorant, meaning can produce strong green colors under all furnace conditions, slow or fast, reducing or oxidizing. 

-Chrome oxide is also a flat colorant (due to its refractory nature), Chrome oxide usually produces an army helmet opaque green. 
-Chrome oxide is powerful, typically only 2% will produce a dark color. 
-Chrome oxide cannot be used to make a metallic glaze.
-Chrome oxide is usually employed in raw glazes whereas potassium dichromate is used in fritted glazes.
-Used in abrasives, refractory materials, semiconductors, pigments, alloys, textile printing inks, and catalysts.
-Used as a pigment in polymers and latex paints.
-Very small amounts are needed to color creams, lotions and more. Start with ¼ teaspoon or even less and add until the desired shade is obtained. 

-Please do small test batches as some of the colors are unstable in cold process soap. 
-To use in melt and pour, the powders need to be dispersed into a small amount of the melted base first and then add to the remaining melted soap and stir well.
-Chrome Oxide (Green) is a bold, bright color that is very striking. 
Excellent for doors, windows, and trim, making such architectural details really pop or catch the eye.
Chrome oxide (Green) is used as raw material in the preparation of pigments for porcelain, plastic cements and refractory products. 
-Moreover, chromic oxide is used as catalyst in the chemical industry.
​

PRODUCTION of CHROME OXIDE (Green):
The Parisians Pannetier and Binet first prepared the transparent hydrated form of Cr2O3 in 1838 via a secret process, sold as a pigment. 
(Green) chrome oxide is derived from the mineral chromite, (Fe,Mg)Cr2O4. 
The conversion of chromite to chromia proceeds via Na2Cr2O7, which is reduced with sulfur at high temperatures.
The oxide is also formed by the decomposition of chromium salts such as chromium nitrate, or by the exothermic decomposition of ammonium dichromate.
The reaction has a low ignition temperature of less than 200 °C and is frequently used in “volcano” demonstrations.

PHYSICAL and CHEMICAL PROPERTIES of CHROME OXIDE (Green):
Color: Green
Form: Powder
Molecular weight : 151,99 g/mol
Appearance Form: powder
Color: green
Odor: No data available
Odor Threshold: No data available
Ph: 5.0 to 8.0(Conc.(% w/w): 5%)
Density approximately: 5.2 g/cm³ at 20 °C
Melting point/freezing point
Melting point/freezing point: 2.435 °C
Initial boiling point and boiling range: 4.000 °C
Flash point: Not applicable
Evaporation rate: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Vapor pressure: No data available
Vapor density: No data available
Relative density: No data available
Water solubility: insoluble
Partition coefficient: n-octanol/water: No data available
Autoignition temperature: No data available
Decomposition temperature: No data available
Viscosity:
Viscosity, kinematic: No data available
Viscosity, dynamic: No data available
Explosive properties: No data available
Oxidizing properties: No data available

FIRST AID MEASURES of CHROME OXIDE (Green):
Description of first-aid measures:
*General advice:
Consult a physician. 
Show this material safety data sheet to the doctor in attendance.

*If inhaled:
If breathed in, move person into fresh air. 
If not breathing, give artificial respiration.
Consult a physician.
Remove victim to fresh air and keep at rest in a position comfortable for breathing. 
Get medical attention if breathing becomes difficult.

*In case of skin contact:
Wash contaminated skin with soap and water. 
Remove contaminated clothing and shoes. 
Get medical attention if irritation Occurs. 
Wash off with soap and plenty of water. 
Consult a physician.

*In case of eye contact:
Immediately flush eyes with plenty of water, occasionally lifting the upper and lower eyelids. 
Check for and remove any contact lenses. 
Get medical attention if irritation occurs.
Flush eyes with water as a precaution.

*If swallowed:
Never give anything by mouth to an unconscious person. 
Rinse mouth with water. 
Consult a physician.
Wash out mouth with water. 
Remove victim to fresh air and keep at rest in a position comfortable for breathing. 
If material has been swallowed and the exposed person is conscious, give small quantities of water to drink. 
Stop giving water if the exposed person feels sick as vomiting may be dangerous. 
Get medical attention if symptoms occur. 

ACCIDENTAL RELEASE MEASURES of CHROME OXIDE (Green):
-Personal precautions, protective equipment and emergency procedures:
No action shall be taken involving any personal risk or without suitable training. 
Evacuate surrounding areas. 
Keep unnecessary and unprotected personal from entering. 
Do not touch or walk through spilled material. 
Avoid breathing dust. 
Put on appropriate personal protective equipment. 
Use personal protective equipment. 
Avoid dust formation. 
Avoid breathing vapors, mist or gas. 
Ensure adequate ventilation. 
Avoid breathing dust.

-Environmental precautions:
Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains and sewers. 
Inform the relevant authorities if the product has caused environmental pollution(Sewers, waterways, soil or air). 
Do not let product enter drains.

-Methods and materials for containment and cleaning up:
Move containers from spill area. 
Approach release from upwind.
Vacuum or sweep up material and place in a designed,labeled waste container. 
Avoid creating dusty conditions and prevent wind dispersal. 
Dispose of via a licensed waste disposal contractor. 
Prevent entry into sewers, water courses, basements or confined areas.
Pick up and arrange disposal without creating dust. 
Sweep up and shovel. 
Keep in suitable, closed containers for disposal.

FIREFIGHTING MEASURES of CHROME OXIDE GREEN:
-Extinguishing media:
Suitable extinguishing media:
Use an extinguishing agent suitable for the surrounding fire. 
In case of fire, use water spray(fog),foam or dry chemical. 
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
-Special hazards arising from the substance or mixture:
Chromium oxides
-Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
-Further information: No data available

EXPOSURE CONTROLS/PERSONAL PROTECTION of CHROME OXIDE (Green):
-Control parameters:
Ingredients with workplace control parameters:
-Appropriate engineering Controls:
Use only with adequate ventilation. 
If user operations generate dust, fumes, gas, vapor or mist, use process enclosures, local exhaust ventilation or other engineering controls to keep worker exposure to airborne contaminants below any recommended or statutory limits. 

-Exposure controls:
Personal protective equipment:
*Eye/face protection
Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

*Skin protection:
Handle with gloves. 
Gloves must be inspected prior to use. 
Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. 
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. 
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm
Break through time: 480 min
Splash contact:
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm
Break through time: 480 min

*Body Protection:
Choose body protection in relation to its type, to the concentration and amount of dangerous substances, and to the specific work-place. 
The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
*Respiratory protection:
Respiratory protection is not required. 
Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. 
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

*Hygiene measures: 
Wash hands, forearms and face thoroughly after handling chemical products, before eating, smoking and using the lavatory and at the end of the working period. 
Appropriate contaminated clothing before using. 
Ensure that eyewash stations and safety shower are close to the workstation location.

HANDLING and STORAGE of CHROME OXIDE (Green):
-Precautions for safe handling:
Protective measures: 
Remove contaminated clothing and protective equipment before entering eating areas. 
Workers should wash hands and face before eating, drinking and smoking. 
Put on appropriate personal protection equipment. 
Eating, drinking and smoking should be prohibited in areas where this material is handled, stored and processed.

Advice on protection against fire and explosion:
Provide appropriate exhaust ventilation at places where dust is formed.
Hygiene measures:
Handle in accordance with good industrial hygiene and safety practice. 
Wash hands before breaks and at the end of workday.

-Conditions for safe storage, including any incompatibilities:
Storage conditions:
Store in cool place. 
Keep container tightly closed in a dry and well-ventilated place.
Hygroscopic Handle and store under inert gas.

Conditions for safe storage: 
Store in accordance with local regulations. 
Store in original container protected from direct sunlight in a dry, cool and well-ventilated area, away from incompatible materials and food and drink. 
Keep container tightly closed and sealed until ready for use. 
Containers that have been opened must be carefully resealed and kept upright to prevent leakage. 
Do not store in unlabeled containers. 
Use appropriate containment to avoid environmental contamination. 
Empty containers or liners may retain some product residues.

TRANSPORT AND STORAGE of CHROME OXIDE (Green):
Protect against weathering. 
Store in a dry place.
Special conditions for opened packaging: 
Close bags after use to prevent the absorption of moisture and contamination.

STABILITY and REACTIVITY of CHROME OXIDE (Green):
-Reactivity: 
No specific test data related to reactivity available for this product or its ingredients.
-Chemical stability: Stable under recommended storage conditions.

DISPOSAL CONSIDERATIONS of CHROME OXIDE (Green):
WASTE MANAGEMENT: 
When handling waste, consideration should be made to the safety precautions applying to handling of the product.
DISPOSAL METHODS: 
Material which cannot be re-used should be disposed of in accordance with federal, state and local environmental control
regulations at an authorized site by an approved contractor.

SYNONYMS:
Chromium (III) oxide
Chrome oxide
Opaque chromium oxide
Pigment Green 17